The pc is for some internet and programming for my kids. Not for gaming or any serious graphics or number crunching.
The pc has served me well, and still functions well. Of course it is a little slow.
Never was down once in 9+ years (hardware wise).
By comparision, my new C2D was down within the first 3 hours of operation.
It is not just a question of budget. Why put in $600 when $15 will do ?
Anyway, a Coppermine 800 (FSB 100) will probably do the job (if I can find one).